Microchip Technology MIC49300-0.9WR

Description
The MIC49300 is a high-bandwidth, low-dropout, 3.0A voltage regulator designed for powering core voltages of low-power microprocessors. It features a dual supply configuration for ultra-low input voltages on the main supply rail. The input supply operates from 1.4V to 6.5V, while the bias supply requires between 3V and 6.5V. The MIC49300 offers fixed output voltages from 0.9V to 1.8V and adjustable output voltages down to 0.9V. It requires minimal output capacitance for stability and works optimally with small ceramic capacitors. The MIC49300 is available in a 5-lead S-Pak and operates over a junction temperature range of -40°C to 125°C.

Features
Input Voltage Range:
VIN: 1.4V to 6.5V
VBIAS: 3.0V to 6.5V
Stable with 1 uF Ceramic Capacitor
±1% Initial Tolerance
Maximum Dropout Voltage (VIN - VOUT) of 500 mV over Temperature
Adjustable Output Voltage Down to 0.9V
Ultra-Fast Transient Response (Up to 10 MHz Bandwidth)
Excellent Line and Load Regulation Specifications
Logic Controlled Shutdown Option
Thermal Shutdown and Current Limit Protection

Applications
Graphics Processors
PC Add-In Cards
Microprocessor Core Voltage Supply
Low Voltage Digital ICs
High Efficiency Linear Power Supplies
SMPS Post Regulators